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S12700 V200R013C00 Command Reference

This document describes all the configuration commands of the device, including the command function, syntax, parameters, views, default level, usage guidelines, examples, and related commands.
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lldp message-transmission interval (AP system profile view)

lldp message-transmission interval (AP system profile view)

Function

The lldp message-transmission interval command sets the LLDP packet transmission interval.

The undo lldp message-transmission interval command restores the default LLDP packet transmission interval.

The default LLDP packet transmission interval is 30 seconds.

Format

lldp message-transmission interval interval

undo lldp message-transmission interval

Parameters

Parameter

Description

Value

interval

Specifies the LLDP packet transmission interval.

The value is an integer that ranges from 5 to 32768, in seconds.

The interval value depends on the parameter delay set by the lldp message-transmission delay command. The interval value must be larger than or equal to 4 times the delay value; otherwise, the system displays an error message when you run the lldp message-transmission interval command.

Views

AP system profile view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

When the LLDP status of the AP keeps unchanged or the AP does not discover new neighbors, the AP sends LLDP packets to the neighbors at a specified interval.

If you want to change the network topology detection frequency, run the lldp message-transmission interval command to change the LLDP packet transmission interval.

Configuration Impact

The LLDP transmission interval must be set properly and adjusted according to network loads.
  • A large value reduces the LLDP packet transmission frequency. This helps save system resources. However, if the value is too large, the device cannot notify neighbors of its status in a timely manner, and the NMS cannot discover the network topology changes in real time.
  • A short interval increases the LLDP packet transmission frequency and enables the NMS to discover network topology changes in real time. If the delay is too short, LLDP packets are exchanged frequently. This increases the system load and wastes resources.
  • The default value is recommended.

Precautions

Consider the value of delay when adjusting the value of interval because it is restricted by the value of interval.
  • Increasing the value of interval is not restricted by the value of delay. interval can be any number from 5 to 32768.
  • The interval value must be larger than or equal to four times the delay value. Therefore, if you want to set interval to be smaller than four times the value of delay, first reduce the delay value to be smaller than or equal to a quarter of the new interval value, and then reduce the interval value.
NOTE:

If the delay value is larger than a quarter of the interval value, the system displays an error message when you run the undo lldp message-transmission interval command. To run the undo lldp message-transmission interval command, reduce the delay value to be smaller than or equal to a quarter of the interval value first.

Example

# Set the LLDP packet transmission interval to 60 seconds.

<HUAWEI> system-view
[HUAWEI] wlan 
[HUAWEI-wlan-view] ap-system-profile name ap-system1
[HUAWEI-wlan-ap-system-prof-ap-system1] lldp message-transmission interval 60
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Updated: 2019-04-09

Document ID: EDOC1100065659

Views: 122976

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